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New evidence for supernova-driven galactic fountains in the Milky Way

19/11/2010

New evidence for supernova-driven galactic fountains in the Milky Way

  • Categoría Astronomía
  • Observing the X-ray-bright gas in the halo of the Milky Way, ESA's XMM-Newton has gathered new data which favour a process involving fountains of hot gas in our Galaxy. Such a scenario, with the gas flowing from the galactic disc into the halo where it then condenses into cooler clouds and subsequently falls back to the disc, confirms the importance of supernova explosions in forging the evolution of the interstellar medium and of the entire Galaxy.
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